Recycle a potato chip can into a simple camera.
With a lens, you can bend light to make pictures of the world.
Before there were clocks, people used shadows to tell time!
Find out what's inside a floppy disk.
Make your own miniature "Lava Lite."
Make a fantastic toy that shimmers when you shake it.
Do hot water and cold water mix?
A do-it-yourself cartoon kit. It's easy to make pictures move!
Share some secret sounds with a friend.
An ordinary metal spoon can make some astounding sounds!
Recycle some cans to make after-dinner music!
This simple paper toy spins through the air like a mini-helicopter!
Become an aircraft designer!
Most paper airplanes are flat, but these paper hoops can really fly!
You can make sentences without words!
Grow spikes of crystals in the sun.